Cobra Sport 3" Secondary De-Cat Bypass Performance Exhaust - BMW M3 (F80) (2014-18) 335i and with this cat-back performance

and with this cat-back performance exhaust system—which means that the stock catalytic converters remain in place—there’s no need to remap the ECU (it’s simply a plug-and play system)

caused by the secondary O2 sensor reading the wrong values

WAGNERTUNING Competition Core with high cooling performance and light weight (5

The lighter than OE system can be selected with 114mm polished Daytona or our premium quality Carbon Ascari tailpipes

Cobra Sport 3" Secondary De-Cat Bypass Performance Exhaust - BMW M3 (F80) (2014-18) 335i and with this cat-back performanceCobra Sport performance exhausts enhance the sound, looks and quality of your vehicle giving you the ultimate driving experience. Our sports exhausts range is fully guaranteed to give you assurance of our quality. This BMW M3 performance exhaust is made in 3" 76. 2mm bore pipework and replaces the secondary catalyst (Cat Bypass). This de cat sports exhaust is sold for motorsport and off road use only and will NOT be able to pass a UK MOT emissions